Improved furnace



u To all whom it mag-j concern:

1 `lUNITED STATES- MELGHIORE F. MAeLIoooo, or PHILADELPHIA, PENNSYLVANIA, AssIGNoR i -PATENT OFFICE.

-- TO HIMSELF AND ABRAHAM ANDERSON, OF CAMDEN, NEW JERSEY;A

nvlplsovso FURN'ACE.

l Specication formingpart of Letters Patent No. 44,772, dated October 18., A1864."-

Be itknownthat I, MELCHIORE EMAG- 1.10000, of Philadelphia, Pennsylvania, have invented certain Improvemcntsi'n Heaters; and I do hereby declare the following to'be a full, clear, and exact description of the same, `reference being had' to the accompanying drawings, and tothe letters ofreference marked thereon.

. y My invention consists, first, incertain cas-. ings and tubes so arranged inrespect to the tire-pot'that the .air'which passes through the f heater will be thoroughly and rapidly heated secondly, in certain plates formed and arranged as described hereinafter for distributing cold air among the heated vgases arising froml the nre-pot; thirdly, in devices hereinafter described for causing the heated products of combustion to circulatein contact with the surfaces oi. the tubes and casing.V

In order to enable 'others skilled in the art to make'andvuse my invention, I will'nowprocceed to describe its construction and opera-1 tion. Y

' On reference to the 4"accompanying drawings, which forma part of this specification, i Figure 1- is a sectional elevationof my im.

proved heater 5' and Fig. 2a section on the line 1 2, Figi 1.v

A is a cylindrical casing, which restson the base-plate A', and is closed at the top, except where the discharge-pipes B are-connected to the same. Within the casing A is a somewhat smaller `ca'sin g, C, which is open at the top and extends nearly lto thev top of the outer cas l ing, A. i In the center of the casing G is the tire-pot D, beneath which is the ash-pit E, the latter extendingtorward through both casings and being provided at its outer end with a door, F. The grate G is hung to a rod, b,

series of vvertical pipes', c, which are open at both ends. From the lower part of the casing All.

El, above the fire-box, to the outer casing, A,

extends a square .pipe,rJ, which has on its outer end a door, K, the said pipe forming a. passage forl the admission ofY fuel to the vtireot. p Directly over the trefpot D 'is suspended a cone-shaped plate, L, vto the'lower edge of which Yis secured a perforated plate, L", there being a space inclosed between the plates,land

from the centers of both plates projectsV Llpward avshort pipe, M, to the upper end of which is'connected the lower end of a funnel, Il, the pipe I extending nearly to the bottomI of the said funnel. Within the pipe M is a damper, d, which can be operated by arod ex tending to the outside of the casing.

Around the upper edge ofthe re-pot is an annular chamber with perforations in the side pext the interior of. thepot, the said chamber being supplied with lair through tubes e, extending from' the same'through the base-plate open at both ends and communicating at the upper ends with the space between the plates L and L. l

In the base-plate the former admitting air from beneath the base-plates to the interior of the heater between the casings A and C, and the latter ad-v mittin g the airto the interior of the casin g C.

When the fire is kindled, the damper d shouldbe turned so that the products of combustion can pass directly upward through the pipes M and I tothe chimney. After the fuel has become fully ignited the damper should be turned to the position shown in'Fig. 1, so that the heated products of combustion shall be deiiected by the plates L toward the sides i l of the casing -H and shall pass upward and around the tubes c to the top of the funnel N, and downward` into the, latter to the lower end of the pipe I, and thence to the chimney, being thus compelled to vcirculate Within the interior oi the casing H in such a manner as to thoroughly heat the latter'and the tubes c.

As the heated gases from the ignited fuel I are brought inA contact with theperforated Vplate L they are intimately mixed with the cold air which issues from the perforations in the said plate and are entirely consumed.

Through the base-plate A and through 1 the bottom of the chamber H extend tubes f,

A' are openings i and i',

The cold air enters the heater through th ,5 openings z' and i in the base and through the .tubes c, and passes upward in contact with the heated surfaces of the casing and tubes'to the top of the heater, and out of the latterfm It will be apparent that by thearrangeme m; of casings and pipes above described the products of combustion from the fire are dis..

tributed in the most etficient manner for heat. ing the surfaces with which the air passt-,S in contact, and v that 'none "of "the surfaces so heated are so exposed as to distribute their heat to the external air and thereby waste the same.

It will also be seen, that by introducing the cold air throught-hc plate L in the manner described it will be intimately mixed with the heated products of combustion and eft'ectually aid in promoting the consumption of the same.

I claim as my invention and de'sire to secure by Letters Patent- 1. The casing H, arranged above the hre- -pot and combined with the pipes c and the casin gs C and A, substantially as and for the purpose set forth.y l i 2. The plate L, perforated plate' L', and tnbesf, or their equivalents,arranged in respect to each other and to the lire-pot, substantially as and for the purpose set forth.

3. The funnel N, pipe M, with its damperd, and plates L, arranged within the casing H, above the lire-pot, in respect to the latter and the pipe I as set forth, for the purpose described. v

Intestimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses. v

MELOHIORE 'F. MAGLIOCCO.

Witnesses: l

CHARLES FOSTER., J onN WHITE. 

